Protokol Konfigurasi Hos Dinamik: Perbezaan antara semakan

Kandungan dihapus Kandungan ditambah
Yosri (bincang | sumb.)
Yosri (bincang | sumb.)
Sedikit demi sedikit
Baris 111:
</table>
 
===Permohonan DHCP request===
Pelanggan boleh menerima tawaran DHCP daripada beberapa pelayan, tetapi hanya menerima hanya satu tawaran DHCP dan memancarkan perutusan permohonan DHCP. Berdasarkan bidang Transaction ID dalam permohonan, pelayan diberitahu tawaran siapa yang diterima pelanggan. Apabila pelayan DHCP lain menerima perutusan ini, mereka menarik kembali sebarang tawaran yang diberikan kepada pelanggan dan memulangkan alamat yang ditawarkan kembali kepada kelompok alamat yang tersedia. Perutusan permohonan DHCP dipancarkan, dan bukannya dipancar khusus kepada pelayan DHCP tertentu, kerana pelanggan DHCP masih belum menerima alamat IP. Juga, perutusan satu hala boleh memberitahu pelayan DHCP lain untuk memberitahu bahawa pelayan lain akan membekalkan alamat IP tanpa tertinggal sebarang pelayan sekiranya menggunakan perutusan pemancar tunggal.
A client can receive DHCP offers from multiple servers, but it will accept only one DHCP offer and broadcast a DHCP request message. Based on the Transaction ID field in the request, servers are informed whose offer the client has accepted. When other DHCP servers receive this message, they withdraw any offers that they might have made to the client and return the offered address to the pool of available addresses. The DHCP request message is broadcast, instead of being unicast to a particular DHCP server, because the DHCP client has still not received an IP address. Also, this way one message can let all other DHCP servers know that another server will be supplying the IP address without missing any of the servers with a series of unicast messages.
 
<table class="wikitable"><caption>DHCPREQUEST</caption>